| Seth Thayer Stewart - Geometry - 1891 - 426 pages
...In any triangle, if a line be drawn from the vertex at right angles to the base, the difference of **the squares of the sides is equal to the difference of the squares of the** segments of the base. 93. The squares of the diagonals of a parallelogram are together equivalent to... | |
| Edward Brooks - 1901 - 278 pages
...parallelogram. 18. In any triangle, if a perpendicular is drawn from the vortex to the base, the difference of **the squares of the sides is equal to the difference of the squares of the** segments of the base. 19. If one side of a right triangle is double the other, the perpendicular from... | |
| Robert Louis Short, William Harris Elson - Mathematics - 1911 - 216 pages
...EXERCISE 68 1. In any triangle, if a perpendicular is drawn from the vertex to the base, the difference of **the squares of the sides is equal to the difference of the squares of the** segments of the base. 2. In any triangle, if an altitude is drawn, the ratio of the sum of the sides... | |
| McGill University - 1868 - 402 pages
...sides. a. If a perpendicular be let full from the vertex of a triangle on the base, the difference of **the squares of the sides is equal to the difference of the squares of the** segments of the base. 2. Construct a square equal to a given rectilineal figure. 3. The angle in a... | |
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